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[Bug 1548101] [NEW] iwlwifi kernel module failing wifi connection: Microcode SW error detected

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Sezer Yalcin <sezer@xxxxxxxxx>
Date: Sun, 21 Feb 2016 19:06:32 -0000
Reply-to: Bug 1548101 <1548101@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:


Intel Wifi 7260ac card fails WIFI connectivity with following errors in kern.log:


Feb 21 19:19:04 g750 kernel: [ 2771.781401] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
Feb 21 19:19:06 g750 kernel: [ 2773.514810] iwlwifi 0000:03:00.0: Microcode SW error detected.  Restarting 0x2000000.
Feb 21 19:19:06 g750 kernel: [ 2773.514821] iwlwifi 0000:03:00.0: CSR values:
Feb 21 19:19:06 g750 kernel: [ 2773.514825] iwlwifi 0000:03:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
Feb 21 19:19:06 g750 kernel: [ 2773.514847] iwlwifi 0000:03:00.0:        CSR_HW_IF_CONFIG_REG: 0X00489204
Feb 21 19:19:06 g750 kernel: [ 2773.514869] iwlwifi 0000:03:00.0:          CSR_INT_COALESCING: 0X8000ff40
Feb 21 19:19:06 g750 kernel: [ 2773.514884] iwlwifi 0000:03:00.0:                     CSR_INT: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.514899] iwlwifi 0000:03:00.0:                CSR_INT_MASK: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.514914] iwlwifi 0000:03:00.0:           CSR_FH_INT_STATUS: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.514929] iwlwifi 0000:03:00.0:                 CSR_GPIO_IN: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.514944] iwlwifi 0000:03:00.0:                   CSR_RESET: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.514960] iwlwifi 0000:03:00.0:                CSR_GP_CNTRL: 0X080403c5
Feb 21 19:19:06 g750 kernel: [ 2773.514975] iwlwifi 0000:03:00.0:                  CSR_HW_REV: 0X00000144
Feb 21 19:19:06 g750 kernel: [ 2773.514990] iwlwifi 0000:03:00.0:              CSR_EEPROM_REG: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.515006] iwlwifi 0000:03:00.0:               CSR_EEPROM_GP: 0X80000000
Feb 21 19:19:06 g750 kernel: [ 2773.515021] iwlwifi 0000:03:00.0:              CSR_OTP_GP_REG: 0X803a0000
Feb 21 19:19:06 g750 kernel: [ 2773.515036] iwlwifi 0000:03:00.0:                 CSR_GIO_REG: 0X00080042
Feb 21 19:19:06 g750 kernel: [ 2773.515051] iwlwifi 0000:03:00.0:            CSR_GP_UCODE_REG: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.515066] iwlwifi 0000:03:00.0:           CSR_GP_DRIVER_REG: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.515081] iwlwifi 0000:03:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.515096] iwlwifi 0000:03:00.0:           CSR_UCODE_DRV_GP2: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.515111] iwlwifi 0000:03:00.0:                 CSR_LED_REG: 0X00000060
Feb 21 19:19:06 g750 kernel: [ 2773.515126] iwlwifi 0000:03:00.0:        CSR_DRAM_INT_TBL_REG: 0X8886e3d4
Feb 21 19:19:06 g750 kernel: [ 2773.515141] iwlwifi 0000:03:00.0:        CSR_GIO_CHICKEN_BITS: 0X27800200
Feb 21 19:19:06 g750 kernel: [ 2773.515156] iwlwifi 0000:03:00.0:             CSR_ANA_PLL_CFG: 0Xd55555d5
Feb 21 19:19:06 g750 kernel: [ 2773.515171] iwlwifi 0000:03:00.0:           CSR_HW_REV_WA_REG: 0X0001001a
Feb 21 19:19:06 g750 kernel: [ 2773.515186] iwlwifi 0000:03:00.0:        CSR_DBG_HPET_MEM_REG: 0Xffff0010
Feb 21 19:19:06 g750 kernel: [ 2773.515190] iwlwifi 0000:03:00.0: FH register values:
Feb 21 19:19:06 g750 kernel: [ 2773.515217] iwlwifi 0000:03:00.0:         FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X86fc6300
Feb 21 19:19:06 g750 kernel: [ 2773.515244] iwlwifi 0000:03:00.0:        FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X086fc620
Feb 21 19:19:06 g750 kernel: [ 2773.515270] iwlwifi 0000:03:00.0:                  FH_RSCSR_CHNL0_WPTR: 0X00000030
Feb 21 19:19:06 g750 kernel: [ 2773.515296] iwlwifi 0000:03:00.0:         FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
Feb 21 19:19:06 g750 kernel: [ 2773.515323] iwlwifi 0000:03:00.0:          FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
Feb 21 19:19:06 g750 kernel: [ 2773.515350] iwlwifi 0000:03:00.0:            FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
Feb 21 19:19:06 g750 kernel: [ 2773.515373] iwlwifi 0000:03:00.0:    FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.515400] iwlwifi 0000:03:00.0:                FH_TSSR_TX_STATUS_REG: 0X07ff0001
Feb 21 19:19:06 g750 kernel: [ 2773.515426] iwlwifi 0000:03:00.0:                 FH_TSSR_TX_ERROR_REG: 0X00000000
Feb 21 19:19:06 g750 kernel: [ 2773.515567] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
Feb 21 19:19:06 g750 kernel: [ 2773.515572] iwlwifi 0000:03:00.0: Status: 0x00000000, count: 6
Feb 21 19:19:06 g750 kernel: [ 2773.515576] iwlwifi 0000:03:00.0: Loaded firmware version: 22.24.8.0
Feb 21 19:19:06 g750 kernel: [ 2773.515581] iwlwifi 0000:03:00.0: 0x00002078 | ADVANCED_SYSASSERT          
Feb 21 19:19:06 g750 kernel: [ 2773.515584] iwlwifi 0000:03:00.0: 0x00A002B0 | uPc
Feb 21 19:19:06 g750 kernel: [ 2773.515588] iwlwifi 0000:03:00.0: 0x00000000 | branchlink1
Feb 21 19:19:06 g750 kernel: [ 2773.515591] iwlwifi 0000:03:00.0: 0x00000BEA | branchlink2
Feb 21 19:19:06 g750 kernel: [ 2773.515595] iwlwifi 0000:03:00.0: 0x00015EB4 | interruptlink1
Feb 21 19:19:06 g750 kernel: [ 2773.515599] iwlwifi 0000:03:00.0: 0x0064A6B8 | interruptlink2
Feb 21 19:19:06 g750 kernel: [ 2773.515602] iwlwifi 0000:03:00.0: 0x00000000 | data1
Feb 21 19:19:06 g750 kernel: [ 2773.515606] iwlwifi 0000:03:00.0: 0x0000E90F | data2
Feb 21 19:19:06 g750 kernel: [ 2773.515609] iwlwifi 0000:03:00.0: 0xDEADBEEF | data3
Feb 21 19:19:06 g750 kernel: [ 2773.515613] iwlwifi 0000:03:00.0: 0x58401518 | beacon time
Feb 21 19:19:06 g750 kernel: [ 2773.515616] iwlwifi 0000:03:00.0: 0x877D5AF2 | tsf low
Feb 21 19:19:06 g750 kernel: [ 2773.515620] iwlwifi 0000:03:00.0: 0x00000053 | tsf hi
Feb 21 19:19:06 g750 kernel: [ 2773.515623] iwlwifi 0000:03:00.0: 0x00000000 | time gp1
Feb 21 19:19:06 g750 kernel: [ 2773.515627] iwlwifi 0000:03:00.0: 0xA4C7FCB3 | time gp2
Feb 21 19:19:06 g750 kernel: [ 2773.515630] iwlwifi 0000:03:00.0: 0x00000000 | time gp3
Feb 21 19:19:06 g750 kernel: [ 2773.515634] iwlwifi 0000:03:00.0: 0x00041618 | uCode version
Feb 21 19:19:06 g750 kernel: [ 2773.515637] iwlwifi 0000:03:00.0: 0x00000144 | hw version
Feb 21 19:19:06 g750 kernel: [ 2773.515641] iwlwifi 0000:03:00.0: 0x00489204 | board version
Feb 21 19:19:06 g750 kernel: [ 2773.515644] iwlwifi 0000:03:00.0: 0x0979004E | hcmd
Feb 21 19:19:06 g750 kernel: [ 2773.515648] iwlwifi 0000:03:00.0: 0x00022084 | isr0
Feb 21 19:19:06 g750 kernel: [ 2773.515651] iwlwifi 0000:03:00.0: 0x00000000 | isr1
Feb 21 19:19:06 g750 kernel: [ 2773.515655] iwlwifi 0000:03:00.0: 0x0000000A | isr2
Feb 21 19:19:06 g750 kernel: [ 2773.515658] iwlwifi 0000:03:00.0: 0x0041FCC0 | isr3
Feb 21 19:19:06 g750 kernel: [ 2773.515661] iwlwifi 0000:03:00.0: 0x00000000 | isr4
Feb 21 19:19:06 g750 kernel: [ 2773.515665] iwlwifi 0000:03:00.0: 0x01008112 | isr_pref
Feb 21 19:19:06 g750 kernel: [ 2773.515668] iwlwifi 0000:03:00.0: 0x00000000 | wait_event
Feb 21 19:19:06 g750 kernel: [ 2773.515672] iwlwifi 0000:03:00.0: 0x00000080 | l2p_control
Feb 21 19:19:06 g750 kernel: [ 2773.515675] iwlwifi 0000:03:00.0: 0x00010020 | l2p_duration
Feb 21 19:19:06 g750 kernel: [ 2773.515679] iwlwifi 0000:03:00.0: 0x0000003F | l2p_mhvalid
Feb 21 19:19:06 g750 kernel: [ 2773.515682] iwlwifi 0000:03:00.0: 0x000000CE | l2p_addr_match
Feb 21 19:19:06 g750 kernel: [ 2773.515686] iwlwifi 0000:03:00.0: 0x00000005 | lmpm_pmg_sel
Feb 21 19:19:06 g750 kernel: [ 2773.515689] iwlwifi 0000:03:00.0: 0x23021719 | timestamp
Feb 21 19:19:06 g750 kernel: [ 2773.515693] iwlwifi 0000:03:00.0: 0x00003038 | flow_handler
Feb 21 19:19:06 g750 kernel: [ 2773.581739] ieee80211 phy0: Hardware restart was requested
Feb 21 19:19:06 g750 kernel: [ 2773.582405] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
Feb 21 19:19:06 g750 kernel: [ 2773.582668] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
Feb 21 19:19:06 g750 kernel: [ 2773.829865] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
Feb 21 19:19:16 g750 kernel: [ 2783.867181] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
Feb 21 19:19:18 g750 kernel: [ 2785.813272] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
Feb 21 19:19:28 g750 kernel: [ 2795.850505] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
Feb 21 19:19:30 g750 kernel: [ 2797.796532] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
Feb 21 19:19:40 g750 kernel: [ 2807.833835] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
Feb 21 19:19:42 g750 kernel: [ 2809.889352] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
Feb 21 19:19:55 g750 kernel: [ 2822.889833] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
Feb 21 19:19:56 g750 kernel: [ 2823.811570] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
Feb 21 19:20:04 g750 kernel: [ 2831.902906] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
Feb 21 19:20:06 g750 kernel: [ 2833.848994] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
Feb 21 19:20:07 g750 kernel: [ 2834.873162] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
Feb 21 19:20:08 g750 kernel: [ 2835.904640] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
Feb 21 19:28:13 g750 kernel: [ 3321.420891] cfg80211: Calling CRDA to update world regulatory domain
Feb 21 19:28:13 g750 kernel: [ 3321.423492] cfg80211: World regulatory domain updated:
Feb 21 19:28:13 g750 kernel: [ 3321.423495] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Feb 21 19:28:13 g750 kernel: [ 3321.423497] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Feb 21 19:28:13 g750 kernel: [ 3321.423498] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Feb 21 19:28:13 g750 kernel: [ 3321.423500] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Feb 21 19:28:13 g750 kernel: [ 3321.423501] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Feb 21 19:28:13 g750 kernel: [ 3321.423502] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Feb 21 19:28:13 g750 kernel: [ 3321.599965] userif-0: sent link down event.
Feb 21 19:28:13 g750 kernel: [ 3321.599969] userif-0: sent link up event.
Feb 21 19:28:17 g750 kernel: [ 3325.027247] wlan0: authenticate with 14:cc:20:d1:76:1c
Feb 21 19:28:17 g750 kernel: [ 3325.028922] wlan0: send auth to 14:cc:20:d1:76:1c (try 1/3)
Feb 21 19:28:17 g750 kernel: [ 3325.031799] wlan0: authenticated
Feb 21 19:28:17 g750 kernel: [ 3325.035592] wlan0: associate with 14:cc:20:d1:76:1c (try 1/3)
Feb 21 19:28:17 g750 kernel: [ 3325.039824] wlan0: RX AssocResp from 14:cc:20:d1:76:1c (capab=0x431 status=0 aid=1)
Feb 21 19:28:17 g750 kernel: [ 3325.042338] wlan0: associated
Feb 21 19:28:17 g750 kernel: [ 3325.251444] userif-0: sent link down event.
Feb 21 19:28:17 g750 kernel: [ 3325.251448] userif-0: sent link up event.
Feb 21 19:28:42 g750 kernel: [ 3350.258062] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
Feb 21 19:28:43 g750 kernel: [ 3351.282124] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
Feb 21 19:35:27 g750 kernel: [ 3755.539496] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
Feb 21 19:35:28 g750 kernel: [ 3756.563798] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
Feb 21 20:58:21 g750 kernel: [ 8733.049399] wlan0: deauthenticated from 14:cc:20:d1:76:1c (Reason: 6)
Feb 21 20:58:21 g750 kernel: [ 8733.056237] cfg80211: Calling CRDA to update world regulatory domain
Feb 21 20:58:21 g750 kernel: [ 8733.057664] wlan0: authenticate with 14:cc:20:d1:76:1c
Feb 21 20:58:21 g750 kernel: [ 8733.059274] wlan0: send auth to 14:cc:20:d1:76:1c (try 1/3)
Feb 21 20:58:21 g750 kernel: [ 8733.059736] cfg80211: World regulatory domain updated:
Feb 21 20:58:21 g750 kernel: [ 8733.059740] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Feb 21 20:58:21 g750 kernel: [ 8733.059743] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Feb 21 20:58:21 g750 kernel: [ 8733.059745] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Feb 21 20:58:21 g750 kernel: [ 8733.059747] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Feb 21 20:58:21 g750 kernel: [ 8733.059748] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Feb 21 20:58:21 g750 kernel: [ 8733.059750] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Feb 21 20:58:21 g750 kernel: [ 8733.163513] wlan0: send auth to 14:cc:20:d1:76:1c (try 2/3)
Feb 21 20:58:21 g750 kernel: [ 8733.249686] userif-0: sent link down event.
Feb 21 20:58:21 g750 kernel: [ 8733.249690] userif-0: sent link up event.
Feb 21 20:58:21 g750 kernel: [ 8733.267389] wlan0: send auth to 14:cc:20:d1:76:1c (try 3/3)
Feb 21 20:58:21 g750 kernel: [ 8733.370653] wlan0: authentication with 14:cc:20:d1:76:1c timed out
Feb 21 20:58:25 g750 kernel: [ 8737.384619] wlan0: authenticate with 14:cc:20:d1:76:1c
Feb 21 20:58:25 g750 kernel: [ 8737.386927] wlan0: send auth to 14:cc:20:d1:76:1c (try 1/3)
Feb 21 20:58:25 g750 kernel: [ 8737.490854] wlan0: send auth to 14:cc:20:d1:76:1c (try 2/3)
Feb 21 20:58:25 g750 kernel: [ 8737.595157] wlan0: send auth to 14:cc:20:d1:76:1c (try 3/3)
Feb 21 20:58:25 g750 kernel: [ 8737.698202] wlan0: authentication with 14:cc:20:d1:76:1c timed out
Feb 21 20:58:30 g750 kernel: [ 8742.214514] wlan0: authenticate with 14:cc:20:d1:76:1c
Feb 21 20:58:30 g750 kernel: [ 8742.216321] wlan0: send auth to 14:cc:20:d1:76:1c (try 1/3)
Feb 21 20:58:30 g750 kernel: [ 8742.318835] wlan0: send auth to 14:cc:20:d1:76:1c (try 2/3)
Feb 21 20:58:30 g750 kernel: [ 8742.422984] wlan0: send auth to 14:cc:20:d1:76:1c (try 3/3)
Feb 21 20:58:30 g750 kernel: [ 8742.526060] wlan0: authentication with 14:cc:20:d1:76:1c timed out
Feb 21 20:58:37 g750 kernel: [ 8749.058924] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Feb 21 20:58:37 g750 kernel: [ 8749.259486] userif-0: sent link down event.
Feb 21 20:58:37 g750 kernel: [ 8749.259489] userif-0: sent link up event.
Feb 21 20:58:39 g750 kernel: [ 8751.042676] wlan0: authenticate with ac:22:0b:ce:8d:d4
Feb 21 20:58:39 g750 kernel: [ 8751.044523] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 1/3)
Feb 21 20:58:39 g750 kernel: [ 8751.150207] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 2/3)
Feb 21 20:58:39 g750 kernel: [ 8751.254408] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 3/3)
Feb 21 20:58:39 g750 kernel: [ 8751.357135] wlan0: authentication with ac:22:0b:ce:8d:d4 timed out
Feb 21 20:58:56 g750 kernel: [ 8768.390554] wlan0: authenticate with ac:22:0b:ce:8d:d4
Feb 21 20:58:56 g750 kernel: [ 8768.392647] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 1/3)
Feb 21 20:58:56 g750 kernel: [ 8768.496589] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 2/3)
Feb 21 20:58:56 g750 kernel: [ 8768.600445] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 3/3)
Feb 21 20:58:56 g750 kernel: [ 8768.703144] wlan0: authentication with ac:22:0b:ce:8d:d4 timed out
Feb 21 20:59:05 g750 kernel: [ 8777.328257] wlan0: authenticate with ac:22:0b:ce:8d:d4
Feb 21 20:59:05 g750 kernel: [ 8777.330126] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 1/3)
Feb 21 20:59:05 g750 kernel: [ 8777.435536] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 2/3)
Feb 21 20:59:05 g750 kernel: [ 8777.539829] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 3/3)
Feb 21 20:59:05 g750 kernel: [ 8777.642402] wlan0: authentication with ac:22:0b:ce:8d:d4 timed out
Feb 21 20:59:19 g750 kernel: [ 8791.173936] wlan0: authenticate with ac:22:0b:ce:8d:d4
Feb 21 20:59:19 g750 kernel: [ 8791.175771] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 1/3)
Feb 21 20:59:19 g750 kernel: [ 8791.278639] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 2/3)
Feb 21 20:59:19 g750 kernel: [ 8791.382834] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 3/3)
Feb 21 20:59:19 g750 kernel: [ 8791.485562] wlan0: authentication with ac:22:0b:ce:8d:d4 timed out
Feb 21 20:59:32 g750 kernel: [ 8805.011176] wlan0: authenticate with ac:22:0b:ce:8d:d4
Feb 21 20:59:32 g750 kernel: [ 8805.013077] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 1/3)
Feb 21 20:59:33 g750 kernel: [ 8805.118044] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 2/3)
Feb 21 20:59:33 g750 kernel: [ 8805.222126] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 3/3)
Feb 21 20:59:33 g750 kernel: [ 8805.324670] wlan0: authentication with ac:22:0b:ce:8d:d4 timed out

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-firmware 1.127.20
ProcVersionSignature: Ubuntu 3.13.0-77.121-generic 3.13.11-ckt32
Uname: Linux 3.13.0-77-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
Date: Sun Feb 21 21:03:24 2016
Dependencies:
 
InstallationDate: Installed on 2013-08-26 (908 days ago)
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_CA:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-firmware
UpgradeStatus: Upgraded to trusty on 2014-11-01 (477 days ago)

** Affects: linux-firmware (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug trusty

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https://bugs.launchpad.net/bugs/1548101

Title:
  iwlwifi kernel module failing wifi connection: Microcode SW error
  detected

Status in linux-firmware package in Ubuntu:
  New

Bug description:
  
  Intel Wifi 7260ac card fails WIFI connectivity with following errors in kern.log:

  
  Feb 21 19:19:04 g750 kernel: [ 2771.781401] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
  Feb 21 19:19:06 g750 kernel: [ 2773.514810] iwlwifi 0000:03:00.0: Microcode SW error detected.  Restarting 0x2000000.
  Feb 21 19:19:06 g750 kernel: [ 2773.514821] iwlwifi 0000:03:00.0: CSR values:
  Feb 21 19:19:06 g750 kernel: [ 2773.514825] iwlwifi 0000:03:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
  Feb 21 19:19:06 g750 kernel: [ 2773.514847] iwlwifi 0000:03:00.0:        CSR_HW_IF_CONFIG_REG: 0X00489204
  Feb 21 19:19:06 g750 kernel: [ 2773.514869] iwlwifi 0000:03:00.0:          CSR_INT_COALESCING: 0X8000ff40
  Feb 21 19:19:06 g750 kernel: [ 2773.514884] iwlwifi 0000:03:00.0:                     CSR_INT: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.514899] iwlwifi 0000:03:00.0:                CSR_INT_MASK: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.514914] iwlwifi 0000:03:00.0:           CSR_FH_INT_STATUS: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.514929] iwlwifi 0000:03:00.0:                 CSR_GPIO_IN: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.514944] iwlwifi 0000:03:00.0:                   CSR_RESET: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.514960] iwlwifi 0000:03:00.0:                CSR_GP_CNTRL: 0X080403c5
  Feb 21 19:19:06 g750 kernel: [ 2773.514975] iwlwifi 0000:03:00.0:                  CSR_HW_REV: 0X00000144
  Feb 21 19:19:06 g750 kernel: [ 2773.514990] iwlwifi 0000:03:00.0:              CSR_EEPROM_REG: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.515006] iwlwifi 0000:03:00.0:               CSR_EEPROM_GP: 0X80000000
  Feb 21 19:19:06 g750 kernel: [ 2773.515021] iwlwifi 0000:03:00.0:              CSR_OTP_GP_REG: 0X803a0000
  Feb 21 19:19:06 g750 kernel: [ 2773.515036] iwlwifi 0000:03:00.0:                 CSR_GIO_REG: 0X00080042
  Feb 21 19:19:06 g750 kernel: [ 2773.515051] iwlwifi 0000:03:00.0:            CSR_GP_UCODE_REG: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.515066] iwlwifi 0000:03:00.0:           CSR_GP_DRIVER_REG: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.515081] iwlwifi 0000:03:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.515096] iwlwifi 0000:03:00.0:           CSR_UCODE_DRV_GP2: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.515111] iwlwifi 0000:03:00.0:                 CSR_LED_REG: 0X00000060
  Feb 21 19:19:06 g750 kernel: [ 2773.515126] iwlwifi 0000:03:00.0:        CSR_DRAM_INT_TBL_REG: 0X8886e3d4
  Feb 21 19:19:06 g750 kernel: [ 2773.515141] iwlwifi 0000:03:00.0:        CSR_GIO_CHICKEN_BITS: 0X27800200
  Feb 21 19:19:06 g750 kernel: [ 2773.515156] iwlwifi 0000:03:00.0:             CSR_ANA_PLL_CFG: 0Xd55555d5
  Feb 21 19:19:06 g750 kernel: [ 2773.515171] iwlwifi 0000:03:00.0:           CSR_HW_REV_WA_REG: 0X0001001a
  Feb 21 19:19:06 g750 kernel: [ 2773.515186] iwlwifi 0000:03:00.0:        CSR_DBG_HPET_MEM_REG: 0Xffff0010
  Feb 21 19:19:06 g750 kernel: [ 2773.515190] iwlwifi 0000:03:00.0: FH register values:
  Feb 21 19:19:06 g750 kernel: [ 2773.515217] iwlwifi 0000:03:00.0:         FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X86fc6300
  Feb 21 19:19:06 g750 kernel: [ 2773.515244] iwlwifi 0000:03:00.0:        FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X086fc620
  Feb 21 19:19:06 g750 kernel: [ 2773.515270] iwlwifi 0000:03:00.0:                  FH_RSCSR_CHNL0_WPTR: 0X00000030
  Feb 21 19:19:06 g750 kernel: [ 2773.515296] iwlwifi 0000:03:00.0:         FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
  Feb 21 19:19:06 g750 kernel: [ 2773.515323] iwlwifi 0000:03:00.0:          FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
  Feb 21 19:19:06 g750 kernel: [ 2773.515350] iwlwifi 0000:03:00.0:            FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
  Feb 21 19:19:06 g750 kernel: [ 2773.515373] iwlwifi 0000:03:00.0:    FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.515400] iwlwifi 0000:03:00.0:                FH_TSSR_TX_STATUS_REG: 0X07ff0001
  Feb 21 19:19:06 g750 kernel: [ 2773.515426] iwlwifi 0000:03:00.0:                 FH_TSSR_TX_ERROR_REG: 0X00000000
  Feb 21 19:19:06 g750 kernel: [ 2773.515567] iwlwifi 0000:03:00.0: Start IWL Error Log Dump:
  Feb 21 19:19:06 g750 kernel: [ 2773.515572] iwlwifi 0000:03:00.0: Status: 0x00000000, count: 6
  Feb 21 19:19:06 g750 kernel: [ 2773.515576] iwlwifi 0000:03:00.0: Loaded firmware version: 22.24.8.0
  Feb 21 19:19:06 g750 kernel: [ 2773.515581] iwlwifi 0000:03:00.0: 0x00002078 | ADVANCED_SYSASSERT          
  Feb 21 19:19:06 g750 kernel: [ 2773.515584] iwlwifi 0000:03:00.0: 0x00A002B0 | uPc
  Feb 21 19:19:06 g750 kernel: [ 2773.515588] iwlwifi 0000:03:00.0: 0x00000000 | branchlink1
  Feb 21 19:19:06 g750 kernel: [ 2773.515591] iwlwifi 0000:03:00.0: 0x00000BEA | branchlink2
  Feb 21 19:19:06 g750 kernel: [ 2773.515595] iwlwifi 0000:03:00.0: 0x00015EB4 | interruptlink1
  Feb 21 19:19:06 g750 kernel: [ 2773.515599] iwlwifi 0000:03:00.0: 0x0064A6B8 | interruptlink2
  Feb 21 19:19:06 g750 kernel: [ 2773.515602] iwlwifi 0000:03:00.0: 0x00000000 | data1
  Feb 21 19:19:06 g750 kernel: [ 2773.515606] iwlwifi 0000:03:00.0: 0x0000E90F | data2
  Feb 21 19:19:06 g750 kernel: [ 2773.515609] iwlwifi 0000:03:00.0: 0xDEADBEEF | data3
  Feb 21 19:19:06 g750 kernel: [ 2773.515613] iwlwifi 0000:03:00.0: 0x58401518 | beacon time
  Feb 21 19:19:06 g750 kernel: [ 2773.515616] iwlwifi 0000:03:00.0: 0x877D5AF2 | tsf low
  Feb 21 19:19:06 g750 kernel: [ 2773.515620] iwlwifi 0000:03:00.0: 0x00000053 | tsf hi
  Feb 21 19:19:06 g750 kernel: [ 2773.515623] iwlwifi 0000:03:00.0: 0x00000000 | time gp1
  Feb 21 19:19:06 g750 kernel: [ 2773.515627] iwlwifi 0000:03:00.0: 0xA4C7FCB3 | time gp2
  Feb 21 19:19:06 g750 kernel: [ 2773.515630] iwlwifi 0000:03:00.0: 0x00000000 | time gp3
  Feb 21 19:19:06 g750 kernel: [ 2773.515634] iwlwifi 0000:03:00.0: 0x00041618 | uCode version
  Feb 21 19:19:06 g750 kernel: [ 2773.515637] iwlwifi 0000:03:00.0: 0x00000144 | hw version
  Feb 21 19:19:06 g750 kernel: [ 2773.515641] iwlwifi 0000:03:00.0: 0x00489204 | board version
  Feb 21 19:19:06 g750 kernel: [ 2773.515644] iwlwifi 0000:03:00.0: 0x0979004E | hcmd
  Feb 21 19:19:06 g750 kernel: [ 2773.515648] iwlwifi 0000:03:00.0: 0x00022084 | isr0
  Feb 21 19:19:06 g750 kernel: [ 2773.515651] iwlwifi 0000:03:00.0: 0x00000000 | isr1
  Feb 21 19:19:06 g750 kernel: [ 2773.515655] iwlwifi 0000:03:00.0: 0x0000000A | isr2
  Feb 21 19:19:06 g750 kernel: [ 2773.515658] iwlwifi 0000:03:00.0: 0x0041FCC0 | isr3
  Feb 21 19:19:06 g750 kernel: [ 2773.515661] iwlwifi 0000:03:00.0: 0x00000000 | isr4
  Feb 21 19:19:06 g750 kernel: [ 2773.515665] iwlwifi 0000:03:00.0: 0x01008112 | isr_pref
  Feb 21 19:19:06 g750 kernel: [ 2773.515668] iwlwifi 0000:03:00.0: 0x00000000 | wait_event
  Feb 21 19:19:06 g750 kernel: [ 2773.515672] iwlwifi 0000:03:00.0: 0x00000080 | l2p_control
  Feb 21 19:19:06 g750 kernel: [ 2773.515675] iwlwifi 0000:03:00.0: 0x00010020 | l2p_duration
  Feb 21 19:19:06 g750 kernel: [ 2773.515679] iwlwifi 0000:03:00.0: 0x0000003F | l2p_mhvalid
  Feb 21 19:19:06 g750 kernel: [ 2773.515682] iwlwifi 0000:03:00.0: 0x000000CE | l2p_addr_match
  Feb 21 19:19:06 g750 kernel: [ 2773.515686] iwlwifi 0000:03:00.0: 0x00000005 | lmpm_pmg_sel
  Feb 21 19:19:06 g750 kernel: [ 2773.515689] iwlwifi 0000:03:00.0: 0x23021719 | timestamp
  Feb 21 19:19:06 g750 kernel: [ 2773.515693] iwlwifi 0000:03:00.0: 0x00003038 | flow_handler
  Feb 21 19:19:06 g750 kernel: [ 2773.581739] ieee80211 phy0: Hardware restart was requested
  Feb 21 19:19:06 g750 kernel: [ 2773.582405] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
  Feb 21 19:19:06 g750 kernel: [ 2773.582668] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
  Feb 21 19:19:06 g750 kernel: [ 2773.829865] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
  Feb 21 19:19:16 g750 kernel: [ 2783.867181] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
  Feb 21 19:19:18 g750 kernel: [ 2785.813272] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
  Feb 21 19:19:28 g750 kernel: [ 2795.850505] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
  Feb 21 19:19:30 g750 kernel: [ 2797.796532] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
  Feb 21 19:19:40 g750 kernel: [ 2807.833835] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
  Feb 21 19:19:42 g750 kernel: [ 2809.889352] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
  Feb 21 19:19:55 g750 kernel: [ 2822.889833] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
  Feb 21 19:19:56 g750 kernel: [ 2823.811570] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
  Feb 21 19:20:04 g750 kernel: [ 2831.902906] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
  Feb 21 19:20:06 g750 kernel: [ 2833.848994] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
  Feb 21 19:20:07 g750 kernel: [ 2834.873162] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
  Feb 21 19:20:08 g750 kernel: [ 2835.904640] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
  Feb 21 19:28:13 g750 kernel: [ 3321.420891] cfg80211: Calling CRDA to update world regulatory domain
  Feb 21 19:28:13 g750 kernel: [ 3321.423492] cfg80211: World regulatory domain updated:
  Feb 21 19:28:13 g750 kernel: [ 3321.423495] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
  Feb 21 19:28:13 g750 kernel: [ 3321.423497] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Feb 21 19:28:13 g750 kernel: [ 3321.423498] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Feb 21 19:28:13 g750 kernel: [ 3321.423500] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
  Feb 21 19:28:13 g750 kernel: [ 3321.423501] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Feb 21 19:28:13 g750 kernel: [ 3321.423502] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Feb 21 19:28:13 g750 kernel: [ 3321.599965] userif-0: sent link down event.
  Feb 21 19:28:13 g750 kernel: [ 3321.599969] userif-0: sent link up event.
  Feb 21 19:28:17 g750 kernel: [ 3325.027247] wlan0: authenticate with 14:cc:20:d1:76:1c
  Feb 21 19:28:17 g750 kernel: [ 3325.028922] wlan0: send auth to 14:cc:20:d1:76:1c (try 1/3)
  Feb 21 19:28:17 g750 kernel: [ 3325.031799] wlan0: authenticated
  Feb 21 19:28:17 g750 kernel: [ 3325.035592] wlan0: associate with 14:cc:20:d1:76:1c (try 1/3)
  Feb 21 19:28:17 g750 kernel: [ 3325.039824] wlan0: RX AssocResp from 14:cc:20:d1:76:1c (capab=0x431 status=0 aid=1)
  Feb 21 19:28:17 g750 kernel: [ 3325.042338] wlan0: associated
  Feb 21 19:28:17 g750 kernel: [ 3325.251444] userif-0: sent link down event.
  Feb 21 19:28:17 g750 kernel: [ 3325.251448] userif-0: sent link up event.
  Feb 21 19:28:42 g750 kernel: [ 3350.258062] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
  Feb 21 19:28:43 g750 kernel: [ 3351.282124] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
  Feb 21 19:35:27 g750 kernel: [ 3755.539496] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 1 (2472/0 MHz)
  Feb 21 19:35:28 g750 kernel: [ 3756.563798] wlan0: AP 14:cc:20:d1:76:1c changed bandwidth, new config is 2472 MHz, width 2 (2462/0 MHz)
  Feb 21 20:58:21 g750 kernel: [ 8733.049399] wlan0: deauthenticated from 14:cc:20:d1:76:1c (Reason: 6)
  Feb 21 20:58:21 g750 kernel: [ 8733.056237] cfg80211: Calling CRDA to update world regulatory domain
  Feb 21 20:58:21 g750 kernel: [ 8733.057664] wlan0: authenticate with 14:cc:20:d1:76:1c
  Feb 21 20:58:21 g750 kernel: [ 8733.059274] wlan0: send auth to 14:cc:20:d1:76:1c (try 1/3)
  Feb 21 20:58:21 g750 kernel: [ 8733.059736] cfg80211: World regulatory domain updated:
  Feb 21 20:58:21 g750 kernel: [ 8733.059740] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
  Feb 21 20:58:21 g750 kernel: [ 8733.059743] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Feb 21 20:58:21 g750 kernel: [ 8733.059745] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Feb 21 20:58:21 g750 kernel: [ 8733.059747] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
  Feb 21 20:58:21 g750 kernel: [ 8733.059748] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Feb 21 20:58:21 g750 kernel: [ 8733.059750] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  Feb 21 20:58:21 g750 kernel: [ 8733.163513] wlan0: send auth to 14:cc:20:d1:76:1c (try 2/3)
  Feb 21 20:58:21 g750 kernel: [ 8733.249686] userif-0: sent link down event.
  Feb 21 20:58:21 g750 kernel: [ 8733.249690] userif-0: sent link up event.
  Feb 21 20:58:21 g750 kernel: [ 8733.267389] wlan0: send auth to 14:cc:20:d1:76:1c (try 3/3)
  Feb 21 20:58:21 g750 kernel: [ 8733.370653] wlan0: authentication with 14:cc:20:d1:76:1c timed out
  Feb 21 20:58:25 g750 kernel: [ 8737.384619] wlan0: authenticate with 14:cc:20:d1:76:1c
  Feb 21 20:58:25 g750 kernel: [ 8737.386927] wlan0: send auth to 14:cc:20:d1:76:1c (try 1/3)
  Feb 21 20:58:25 g750 kernel: [ 8737.490854] wlan0: send auth to 14:cc:20:d1:76:1c (try 2/3)
  Feb 21 20:58:25 g750 kernel: [ 8737.595157] wlan0: send auth to 14:cc:20:d1:76:1c (try 3/3)
  Feb 21 20:58:25 g750 kernel: [ 8737.698202] wlan0: authentication with 14:cc:20:d1:76:1c timed out
  Feb 21 20:58:30 g750 kernel: [ 8742.214514] wlan0: authenticate with 14:cc:20:d1:76:1c
  Feb 21 20:58:30 g750 kernel: [ 8742.216321] wlan0: send auth to 14:cc:20:d1:76:1c (try 1/3)
  Feb 21 20:58:30 g750 kernel: [ 8742.318835] wlan0: send auth to 14:cc:20:d1:76:1c (try 2/3)
  Feb 21 20:58:30 g750 kernel: [ 8742.422984] wlan0: send auth to 14:cc:20:d1:76:1c (try 3/3)
  Feb 21 20:58:30 g750 kernel: [ 8742.526060] wlan0: authentication with 14:cc:20:d1:76:1c timed out
  Feb 21 20:58:37 g750 kernel: [ 8749.058924] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
  Feb 21 20:58:37 g750 kernel: [ 8749.259486] userif-0: sent link down event.
  Feb 21 20:58:37 g750 kernel: [ 8749.259489] userif-0: sent link up event.
  Feb 21 20:58:39 g750 kernel: [ 8751.042676] wlan0: authenticate with ac:22:0b:ce:8d:d4
  Feb 21 20:58:39 g750 kernel: [ 8751.044523] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 1/3)
  Feb 21 20:58:39 g750 kernel: [ 8751.150207] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 2/3)
  Feb 21 20:58:39 g750 kernel: [ 8751.254408] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 3/3)
  Feb 21 20:58:39 g750 kernel: [ 8751.357135] wlan0: authentication with ac:22:0b:ce:8d:d4 timed out
  Feb 21 20:58:56 g750 kernel: [ 8768.390554] wlan0: authenticate with ac:22:0b:ce:8d:d4
  Feb 21 20:58:56 g750 kernel: [ 8768.392647] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 1/3)
  Feb 21 20:58:56 g750 kernel: [ 8768.496589] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 2/3)
  Feb 21 20:58:56 g750 kernel: [ 8768.600445] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 3/3)
  Feb 21 20:58:56 g750 kernel: [ 8768.703144] wlan0: authentication with ac:22:0b:ce:8d:d4 timed out
  Feb 21 20:59:05 g750 kernel: [ 8777.328257] wlan0: authenticate with ac:22:0b:ce:8d:d4
  Feb 21 20:59:05 g750 kernel: [ 8777.330126] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 1/3)
  Feb 21 20:59:05 g750 kernel: [ 8777.435536] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 2/3)
  Feb 21 20:59:05 g750 kernel: [ 8777.539829] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 3/3)
  Feb 21 20:59:05 g750 kernel: [ 8777.642402] wlan0: authentication with ac:22:0b:ce:8d:d4 timed out
  Feb 21 20:59:19 g750 kernel: [ 8791.173936] wlan0: authenticate with ac:22:0b:ce:8d:d4
  Feb 21 20:59:19 g750 kernel: [ 8791.175771] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 1/3)
  Feb 21 20:59:19 g750 kernel: [ 8791.278639] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 2/3)
  Feb 21 20:59:19 g750 kernel: [ 8791.382834] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 3/3)
  Feb 21 20:59:19 g750 kernel: [ 8791.485562] wlan0: authentication with ac:22:0b:ce:8d:d4 timed out
  Feb 21 20:59:32 g750 kernel: [ 8805.011176] wlan0: authenticate with ac:22:0b:ce:8d:d4
  Feb 21 20:59:32 g750 kernel: [ 8805.013077] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 1/3)
  Feb 21 20:59:33 g750 kernel: [ 8805.118044] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 2/3)
  Feb 21 20:59:33 g750 kernel: [ 8805.222126] wlan0: send auth to ac:22:0b:ce:8d:d4 (try 3/3)
  Feb 21 20:59:33 g750 kernel: [ 8805.324670] wlan0: authentication with ac:22:0b:ce:8d:d4 timed out

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-firmware 1.127.20
  ProcVersionSignature: Ubuntu 3.13.0-77.121-generic 3.13.11-ckt32
  Uname: Linux 3.13.0-77-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  Date: Sun Feb 21 21:03:24 2016
  Dependencies:
   
  InstallationDate: Installed on 2013-08-26 (908 days ago)
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_CA:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-firmware
  UpgradeStatus: Upgraded to trusty on 2014-11-01 (477 days ago)

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